I can vault you can vault he can vault we can vault you can vault they can vault
V-ing form
I can be vaulting you can be vaulting he can be vaulting we can be vaulting you can be vaulting they can be vaulting
Perfect
I can have vaulted you can have vaulted he can have vaulted we can have vaulted you can have vaulted they can have vaulted
V-ing perfect
I can have been vaulting you can have been vaulting he can have been vaulting we can have been vaulting you can have been vaulting they can have been vaulting
Negation
Simple form
I can't vault you can't vault he can't vault we can't vault you can't vault they can't vault
V-ing form
I can't be vaulting you can't be vaulting he can't be vaulting we can't be vaulting you can't be vaulting they can't be vaulting
Perfect
I can't have vaulted you can't have vaulted he can't have vaulted we can't have vaulted you can't have vaulted they can't have vaulted
V-ing perfect
I can't have been vaulting you can't have been vaulting he can't have been vaulting we can't have been vaulting you can't have been vaulting they can't have been vaulting
Interrogative form
Simple form
can I vault? can you vault? can he vault? can we vault? can you vault? can they vault?
V-ing form
can I be vaulting? can you be vaulting? can he be vaulting? can we be vaulting? can you be vaulting? can they be vaulting?
Perfect
can I have vaulted? can you have vaulted? can he have vaulted? can we have vaulted? can you have vaulted? can they have vaulted?
V-ing perfect
can I have been vaulting? can you have been vaulting? can he have been vaulting? can we have been vaulting? can you have been vaulting? can they have been vaulting?
Interro-negative form
Simple form
can't I vault? can't you vault? can't he vault? can't we vault? can't you vault? can't they vault?
V-ing form
can't I be vaulting? can't you be vaulting? can't he be vaulting? can't we be vaulting? can't you be vaulting? can't they be vaulting?
Perfect
can't I have vaulted? can't you have vaulted? can't he have vaulted? can't we have vaulted? can't you have vaulted? can't they have vaulted?
V-ing perfect
can't I have been vaulting? can't you have been vaulting? can't he have been vaulting? can't we have been vaulting? can't you have been vaulting? can't they have been vaulting?